Must do quicky near Aberdeen

Hi All
I am working in Aberdeen next week and have a small window for an outing on afternoon.
Any suggestions on the best local trails.
As I said, it is only a few hours I will have so Preferably the best “trail centre” type thing rather than a self guided epic.

For a quicky run it has to be Kirkhill. It’s just a few minutes drive from the centre of town and it’s reasonably easy to find most of the trails that criss cross the hill if you’re on your own. A guide would help get the most out of the ride though. I would offer but I doubt I’d get there before 5-5:15 so probably too late for you.